Abstract
In this paper we demonstrate the importance of cosmic rays for the dynamics of the interstellar medium. We present the first 3D-MHD numerical simulations of the Parker instability triggered by cosmic rays accelerated in randomly distributed supernova remnants. We show that in the presence of galactic rotation a net radial magnetic field is produced as a result of the cosmic ray injection and Coriolis force. This process provides a possibility of very efficient magnetic field amplification within the general frame of so called fast galactic dynamo proposed by (1992).
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Hanasz, M., Kosiński, R., Lesch, H. (2004). Building the Fast Galactic Dynamo. In: de Avillez, M.A., Breitschwerdt, D. (eds) From Observations to Self-Consistent Modelling of the ISM in Galaxies. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0979-9_19
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DOI: https://doi.org/10.1007/978-94-007-0979-9_19
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3758-7
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